Hanten Kousei! Furyou to Onna no Boku

To take revenge on a certain bully, Mashiba-kun buys on-line an obscure drink that is supposed to turn him into a macho man, yet actually turns him into a curvaceous girl instead. Though have no fear! It appears, that Sonomura bully is actually all shy and awkward around women, so it is still possible to make him pay by being all flirty and teasing...